Give the electrical symbol for electric cell.

Important Questions on Electric Current and Its Effects

EASY

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1

Give the electrical symbol for battery.

EASY

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1

Give the electrical symbol for electric bulb.

EASY

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1

Give the electrical symbol for switch in ON position.

EASY

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1

Give the electrical symbol for a wire.

MEDIUM

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 2

What is short-circuiting? What are the causes of short-circuiting?

EASY

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 3

Write any three uses of an electromagnet.

HARD

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 1

With the help of a diagram, show the working of an electric bell.

MEDIUM

7th CBSE

IMPORTANT

SCIENCE MADE EASY>Chapter 14 - Electric Current and Its Effects>EXERCISE>Q 2

Give two advantages of electromagnets over a permanent magnet. What type of magnet is used in an electric bell?